Enhancing Data Security using Video Steganography, RSA and Huffman Code Algorithms with LSB Insertion

Abstract

Security (i.e. Confidentiality, Integrity, Authentication, NonRepudiation, and Availability) in the field of data communication have remained a subject matter of discussion over the years. The internet as well as computer technology have made significant strive in data communication existence. Transferring data securely and safely amidst vulnerabilities of computer networks remain a source of worry to many in the field of data communication. Without security there is no need for data communication. The main objective of this study was to ensure security of data transmitted over the internet. The study proposed a novel approach of data security using video steganography, Huffman Code compression and asymmetric cryptography. In the proposed system, messages are encrypted with RSA and encrypted messages are compressed using Huffman code algorithm. The compressed encrypted messages are hidden using Least Significant Bit (LSB) algorithms. This research brings to light the concept of effectively combining steganography, compression and asymmetric cryptographic algorithm. The preference of RSA over any other cryptographic algorithm is due to its ability to provide better security for large file size thereby reducing computational complexity. The use LSB for video embedding is also good for larger file sizes due to its low computational complexity. Huffman code compression is a lossless compression algorithm which allows reduction in size of data without loss of data. From the results obtained in this research, it was observed that when video steganography is combined with Huffman code compression and asymmetric cryptography, a higher level of security, robustness and capacity are achieved. The distortion experienced in this study is negligible; therefore the study achieved increased security by the high PSNR values and low MSE and BER values.

Data Hiding in Audio Signals using Elliptic Curve Cryptography, Huffman Code Algorithm and Low-Bit Encoding

“…The process of encryption converts the secret file to be sent to binary data, whereas the recipient undergoes the process of decryption to reveal the content of the encrypted file. In [7], the process of encryption was applied before compression. This study however, applies the process of compression before encryption.…”

“…Steganography on the other hand, hides the message so there is no knowledge of the existence of the message as stated by [13]. As such, steganography works towards masking the existence of a secret file while cryptography concerns itself with masking the content of a secret file [7].…”

“…Huffman code is a type of lossless compression scheme that allows reduction in size of file without loss of data [7]. The algorithm belongs to the variable code length family.…”

“…They are easy to access illegally, tamper with, and copy. There is therefore a need to hide secret identification inside certain types of digital data [7,8].…”

Design of Image Steganography based on RSA Algorithm and LSB Insertion for Android Smartphones

“…These threats, therefore, make smartphones easy prone to attacks by crackers and malware than our normal desktop computers which is protected. [5] Opined that data communications is needless if there is no security of the data that is being transmitted. Steganography hides the existence of a message whiles cryptography masks the content of a message.…”